package class07;
/**
 * @author zl
 */
public class Strings {
    public static void main(String[] args) {
        System.out.println(args[0].length());
        System.out.println(args[0].indexOf('a'));
        StringBuffer stringBuffer=new StringBuffer(args[0]);
        System.out.println(stringBuffer.insert(3,"Hello"));
        System.out.println(stringBuffer.replace(3,8,"me"));
    }
}
